User blog comment:AJP27/Nine Things I'd Like to See in a/the Future Game(s)/@comment-26082987-20150228223707/@comment-6769189-20150301235109

We don't know if Trish truly died. Amulet resurrection was only a thing in Viewtiful Joe, which is non-canon. Sparda sealed Argosax, he didnt kill him.

Vergil wouldn't seek humans as a target since he knows he is stronger than just about all of them. He would spend all his time in the demon world